ORA-00904: Ungültige Kennung
Ich habe versucht, die folgende Inner Join-Abfrage mithilfe einer Oracle-Datenbank zu schreiben: SELECT Employee.EMPLID as EmpID, Employee.FIRST_NAME AS Name, Team.DEPARTMENT_CODE AS TeamID, Team.Department_Name AS teamname FROM PS_TBL_EMPLOYEE_DETAILS Employee INNER JOIN PS_TBL_DEPARTMENT_DETAILS...